| You could just make it so that, since the resistance doesn't know about the Obelisk, Kreven has more time to get it operational. Y'know, a "fully armed and operational battle station" and all that. Maybe have some allies they're fond of get wiped out by an initial attack by the Obelisk, so the PCs have to go in with fewer reinforcements.
__________________ Ryan "RangerWickett" Nock 
Author of the War of the Burning Sky serialized novel, free at EN World. Part Two, The Irons Have Tolled, now available. |